Cephalopods like squid and octopuses have color-changing cells called chromatophores, which enable them to blend into their surroundings to hide from predators and prey. Chromatophores can be triggered by electrical signals, so watch what happens when the folks at Backyard Brains play music through a squid fin. The song selection is Cypress Hill’s 1993 classic track, Insane in the Brain.
“Insane in the membrane…”
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